I was wandering if someone knew where the power button is connected on the AC Ryan PlayOnHD board. The reason I am asking is because I own a PBO Patriot Box Office media player which uses the same/similar realtek 1073 demo board. The PBO does not have a power switch like the PlayOnHD and I was hoping I could install one to turn on/off the PBO without the remote or force a firmware update in case I brick my PBO (If you hold the power button on the playonhd it forces a firmware update). I can see four soldering pads (actually

where a switch can be mounted on the board; SW1, SW2, SW3, SW4. Looking at the schematic for the board I can already tell that the SW1 would be use to soft reset the 1073 IC but I am clueless about the function of the other 3.
So could someone that has seen the inside board of the playonhd tell me where the ON/OFF switch is connected even if it doesn't match the switches already mentioned. It might also go to a connector if so tell me the markings around the connector.
Thank you.